You elect someone from a given choice of candidates from a given choice of parties. But that system is like a house of cards, each card needs the other to keep itself propped up. That aside, though, whoever you vote for their fundamental politics are the same because your country is no longer ruled by politicians or a democratic system. It's ruled by corporations and lobbyists who dictate policy based on their agendas.
In the past, back room deals would determine who headed a party's ticket.
Now, it's done in primary elections for the Big Two. The voters are in the
driver's seat. Corporations can influence things by funding advertising, but
that is mere advocacy. We voters still are in total control.
What's really going on is that we don't like our choices, so we (not me) must
find a boogeyman to blame so that we avoid responsibility for our choices.
Remember that bot Bush & Obama were
re-elected for continuing Bush's Agenda.
So despite all the public complaining about what they did, the voters really wanted
it more than the alternatives, eg, prosperity, peace, transparency in government.